matheson



G. MATHESON.

Rolling-Mill.-

Patented May'18, 1,880.

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No. 227,636.. I PatentedM'ay-18J880.

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G. MATHE'SON. Rolling-Mill.

No. 227,636. I Patenfed May 18, I880.

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NITED STATES PATENT OFFICE.

GEORGE MATHESON, OF MOKEESPORT, PA., ASSIGNOR TO HIMSELF AND. T114 NATIONAL TUBE WORKS COMPANY, OF BOSTON, MASS.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 227,636, dated May 18, 1880..

Application filed August 22,1879. I

To all whom it may concern:

Be it known that I, GEORGE MATHEsoN, of McKeesport, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Rolling- Mills; and I do hereby declare that the follow ing is a full, clear, and exact description thereof, reference being" had to the accompanying drawings and to theletters of reference marked I thereon, similar letters in the several figures referring to the same parts.

My invention relates to certain new and useful improvements in the class of rolling-niills especially designed for rolling iron or steel into the desired form.

My invention consists in the combination of horizontal and vertical rolls and guides, said. vertical rolls and their driving-gear being mounted in adjustable bearings, which rolls,

2 bearings, driving gear, and said guides, through the medium of screw-threads on four shafts provided with wheels coupled with a single driving-wheel, are made to move simultaneously toward and from each other for adjusting the vertical rolls to the rolling of iron of different widths.

To enable others skilled in the art with which myinvention is most nearly connected to make and use it, I will proceed to describe its con- 3 struction and operation.

In the accompanying drawings, which form part of my specification, Figure 1 is a top or plan View of my improvement in rolling-mills. Fig. 2 is a front-end elevation of the same. Fig.

3 5 3 is a vertical and transverse section of the same at line y of Fig. 4. Figs. 4. and 5 are opposite side elevations of the same. Fig. 6is a vertical and longitudinal section at line 3 of Figs] and 2. Fig. 7 is a horizontal section of 4.0 the same at line y of Fig. 5. Figs. 8, 9, and 10 are detail section s, representing the detail parts enlarged.

In the accompanying drawings, A A represent the housings for the horizontal rolls 0 D 5 E F, and are provided with the usual bearings for the rolls and with adjusting-screws B.

G H are Vertical rolls placed upon shaft t, which are mounted in adjustable hearings g h, which are supported on shafts cf, which are To the bearings h are attached guides I J secured to the bearings, as indicated at t. The vertical rolls G H project into the sides of the guidesI J, at which point the guides are provided with strengtheningflanges a .r. The inner and upper walls of the guides I J are provided with a downward projection, a", contracting ,the opening in the guides to about the amount of reduction of the iron or steel in its passage 6 5- through the horizontal rolls.

On the upper end of the shafts t of the vertical rolls G H are beveled-gear wheels 8 s, which mesh into bevel-gear wheels 19 1) on the shaft w, having its hearings in the supports Z l, secured to the upper part of the housings A A. The bevel wheels 19 p are provided with hollow shafts, the inner ends of which are provided with flanges a, which shafts move upon the shaft to, having a feather, '0, which projects into a groove in the hollow shafts of the bevel-gear wheels pp. The hollow shafts of the bevel-gear wheels pp, between the inner faces of the wheels and the flanges u, are inclosed in carriers constructed in two parts, j k,- and the lower end of said carriers are fitted to the upper portion of the shafts t of the vertical rolls G H and inclose the bevel-Wheels s s.

The several pairs of rolls and the shafts of the driving-wheels p p s 8 may be operated by driving wheels or pulleys so constructed and arranged as to give the desired power and speeds, which will be readily comprehended by the skillful millwright.

In the foregoing description the construction of a single continuous rolling-mill is described; but it is proposed to have a number of such mills arranged in line with each other, so as to combine their action in the reduction of the bloom or pile to the desired size and form of the finished iron or steel.

As the construction of the herein-described rolling-mill will be readily understood from the foregoing description and by reference to the accompanying drawings, I will therefore proceed to describe the operation.

In the manufacture of iron the puddled ball from the furnace or bloomery is subjected to the hammering process, and while still hot is placed in the heating-furnace and brought to a welding-heat. The rolls (JD being adjusted for the first pass and reduction, and the rolls E F for the second pass and reduction, and the vertical rolls G H and the guides I J adjusted to the width of the iron for the pass through the rolls (J D, the operator passes the bloom or pile between the rolls U D, and it enters the guides I J, the vertical rolls G H properly edging up the passing iron, which passes on through to the rolls E F, which further reduces the iron, and, passing from said rolls to vertical and horizontal rolls arranged in consecutive pairs and series and guides, the iron continues passing, and is th ereby reduced to the desired form and size. The iron, in passing through the first pairs of horizontal and vertical rolls, is reduced aboutonethird, and in passing through the second pairs of horizontal and vertical rolls is reduced about another third, and so on consecutively until the desired size and form of the iron are obtained. The second pairs of horizontal and vertical rolls travel about one-third faster than the first pairs of horizontal and vertical rolls, 1

and the third pairs of horizontal and vertical rolls travel about one-third faster than the second pairs of said rolls, and so on, consecutively, increase in speed of travel. v

Through the medium of the bearings g h and the shafts ef, wheels 2, 3, 4, and 5, and the carriers composed of the parts j is, the vertical rolls G H, and their driving-gear, consisting of wheels 1) 1) s s and the guides I J, are simultaneously moved toward or from each other by simply revolving the wheel 1 by means of a crank placed upon the axis 0 of said wheel.

It will be observed that each of the vertical rolls G H is furnished with independent guides I J, and said guides move simultaneously with the movement or adjustment of each of said rolls and their driving-gear.

By the method and means hereinbefore dc scribed iron or steel may be reduced to the desired size and form at one heat and one op eration, the advantage of which will be apparent to the skilled mechanic and manufacturer of iron and steel.

Having thus described my improvement, what I claim as of my invention is 1. In a rolling-mill containing pairs of vertical and horizontal rolls, the vertical rolls and their bearings being adjustable toward and from one another, grooved guide-pieces, as I J, attached to the bearings ofsaid vertical rolls and moving with them, substantially as described.

2. In a rolling-mill, the combination, with the rolls G H, of the bearings g h, shafts e f, furnished with right and left hand screws and provided with gear-wheels 2, 3, 4, and 5, operated by a single driving-wheel, 1, substantially as herein described, and for the purpose set forth.

3. In a rolling-mill, the combination, with the vertical rolls, of the guides composed of the two parts I J, the bevel-wheels p p s s, shafts t w, and adjustable bearings g g h h, substantially as herein described, and for the purpose set forth.

4. In a rolling-mill, the guides I J, having on their upper and inner walls the downward projection 'r, substantially as herein described, and for the purpose set forth.

GEO. MATHESON.

Witnesses:

JAMES J. JOHNSTON, D. O. ALLEN. 

